1) laser frequency correcting element
激光频率校正元件
2) frequency correction
频率校正
1.
A new frequency correction method was obtained,suitable for the situation of high-order harmonic generation,and this method was proved by two simulation experiments.
采用相位差法对工频频率测量进行了研究,推出了频率校正的计算公式;研究了窗函数和窗长度的选择对校正精度和响应时间的影响,在窗长度足够长的情况下,采用布莱克曼窗、凯泽窗有很高的校正精度;为提高响应速度,推导出了窗长为一个工频周期的傅立叶系数的计算公式,得出只含单频成分时,仍能够采用相位差法对频率进行校正,而当含有高次谐波时不宜直接采用相位差法的结论;还得到一种新的频率校正方法,该方法适合含有高次谐波的情况;通过给出的两种模型进行仿真实验,验证了理论结果的正确性。
3) calibration frequency
校正频率
4) Corrective element
校正元件
5) laser-adjusting
激光校正
1.
The principle of laser-adjusting and the method of laser-measuring were described and applied to adjust the gaps of one model relay.
给出了激光校正的原理和激光测量方法,并用于某型号继电器,具体测试了其簧片气隙的大小和分布情况。
2.
The principle of laser-adjusting is described and a testing bench for laser-adjusting is assembled.
叙述了激光校正的基本原理,制作了相应的激光校正测试试验台。
6) Laser frequency
激光频率
1.
The influence research of wake-wave to laser frequency under effect of supper-strong and supper-short pulse laser;
超强短脉冲激光作用下尾波场对激光频率的影响研究
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条